head to head
Neither is meaningfully harder - they pose close to the same test. The widest gap is reads, and it is a single point.

Optimization · Pure Optimization
A stealth sim about casing houses and planning optimal heists.

Optimization · Pure Optimization
A cult-classic vampire RPG won by discipline choice and skill-check routing.
Thief Simulator 2 leans Optimization (Pure Optimization); Vampire: The Masquerade - Bloodlines leans Optimization (Pure Optimization).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Thief Simulator 2
Lockpicking and stealth timing matter but stay light
Vampire: The Masquerade - Bloodlines
Janky hybrid combat, low demand
Thief Simulator 2 leans a little harder on reads, though the gap is small.
Thief Simulator 2
NPC patrols follow scripted routes, not adaptive
Vampire: The Masquerade - Bloodlines
Scripted NPCs
Thief Simulator 2 leans a little harder on variance, though the gap is small.
Thief Simulator 2
Loot contents and patrol timing add mild uncertainty
Vampire: The Masquerade - Bloodlines
Hidden dice under skill checks
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Thief Simulator 2
Planning routes, tools and casing targets is the core
Vampire: The Masquerade - Bloodlines
Discipline, feeding, build routing central
A matching score does not mean a matching test. Two games can both sit at 10 on execution and demand completely different things of you - which is why the reasoning above matters more than the number beside it.